Ship-stabilizer.



N. ZDUNIEWIGZ.

SHIP STABILIZER.

APPLICATION FILED DEO.14, 1914, 1,130,235, Patented Mar.2,1915.

THE MORRIS PETERS C0.,PHOT1;-L.11HO.. wMHlNcroN. D. CA

rtree` NICOLAS ZDUNIEWICZ, OF NORTHAMPTON, MASSACHUSETTS.

SHIP-STABILZEE.

tisanes.

Specification ofLetters Patent.

Fatented Mar. 2', 1915.,

Application tiled', December 14,/ 1914. Serial No.v 877,139.

T al 'w71 om it may concern:

Be it known that l, NICOLAS Znunrswicz, subject of the Czar of Russia, residing at Northampton, in the county of Hampshire and State of Massachusetts, have invented certain new and useful improvements in Ship-Stabilizers, of which the following is a specification.

This invention relates to certain new and useful improvements in ship stabilizers.

A primary object of the invention is to provide stationary outriggers positioned below the water-line and attached to the hull of the ship at the bow and the stern thereof for maintaining the eouilibrium of the ship and retarding the tipping thereof.

A. further object is to provide separate boards rigidly fixed to the bow and the stern of a ship and positioned in the same horizontal plane and parallel to the normal surface of the water, being arranged therebeneath.

lVith these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel combination and arrangement of parts to be hereinafter more fully described, illustrated in the accompanying drawings and set forth in the appended claim. l

ln the drawings forming a part of this application and in which like-designating characters refer to corresponding parts throughout the several views, Figure 1 is a side elevation of a ship provided with the present device. Fig. 2 is a top plan view thereof, and Fig. 3 is an enlarged end elevation of one side of one of the devices with the adjacent portion of the ship shown in section.

Referring more in detail to the drawings, the invention broadly consists in providing the ship at its bow and stern portions 11 and 12 respectively with rigid horizontally positioned boards 13 and 14 respectively which offer very little resistance to the movement of the ship through the water but at the same time act as outriggers for preventing the rolling and tipping of the ship.

The boards 13 have four sides with a forward corner 15 and a rearward corner 16 right-angular, while the inner side or edge 17 of each of the boards 13 is curved to conform to the bow portion of the hull and against which the boards are rigidly secured at a point substantially mid-way between the normal water-level of the ship and the keel 18 thereof. The boards 13 are secured to the hull by means of brackets 19 mounted upon the hull and attached to the boards at the edges 17 thereof. Metallic strips or braces 20 are also secured between the boards 13 and the sides of the hull at three difierent positions as illustrated in Figs. 1 and 2. The opposite outer edges of the boards 13 and 14 are provided with similar vertically positioned strips 21 as best illustrated in Fig. 3, and these strips likewise offer but little resistance to the water during the movement of the ship but assist in preventing side drifting thereof.

The stern boards 14 are of similar form to the bow boards 13 and have forward and rear rectangular corners 22, while their inner edges 23 are of substantially the same curvature as the upper portion of the hull section 12, while said boards 14 are oppositely positioned with the edges 23 thereof spaced from the sides of the hull for the ac commodation of the rudder 24. The metallic brackets 25 are employed for mounting the stern board which as previously noted are provided with the vertically positioned strips 21.

The bow and stern boards being rigidly secured to the hull, it will be noted that the outer edges 26 thereof are parallel and are in substantial longitudinal alinement with the intermediate side of the ship hull so that they afford only slight obstruction to the ship in passing through the water and materially assist in maintaining the ship upon an even keel by retarding any tipping tendencies. T he safety of the ship during navigation is thus increased and the steering thereof is aided in rough weather by the action of the strips 2l acting after the manner of center-boards.

While the forms of the invention herein shown and described are the preferred embodiments thereof, it. is nevertheless to be understood that minor changes may be made without departing from the spirit and scope of the invention as set forth in the claim. Y

What l claim as new is A. device of the class described, comprising in combination with a ship hull, bow and stern boards having their inner edges conforming to the adjacent sides of the hull, and having opposite outer parallel edges, brackets rigidly secured between the said g Y v Y 130,235

boards and hull, the said outer edges of said In testimony Whereof'I aix my signature boards being ig substantial longitudinal in presence of two Witnesses.

a inement Witht e intermediately ositioned j v portion of the ship hull, and strip longitu- Y NICOLAS ZDUNIEVUCZ' 5 dinally engaging the said board edges and W'itnesses: Y

secured thereto perpendicularlyto the said STANIsLAs DE Yonosmwl'rz,

boards. Y A. KUFFLER. 1

Copies of this patent may be obtainedforrve cents eaci. by addressing" the" Commissioner of Patents.` v I Washington, D. C. Y A 

